Svelte, sexy and a sartorial staple. A procession of dark dresses sashayed down the red carpet on day seven and proved, once again, that when it comes to timeless elegance, it's hard to beat black. At last evening's premiere of Sicario (starring Emily Blunt, Benicio Del Toro and Josh Brolin), star-studded attendees opted for the fail-safe option — but not without playing it up with bows, intricate embellishments and sheer panels. See our favourites below.

Cate Blanchett in Armani Prive

Elettra Rossellini Wiedemann in Elie Saab Couture

Isabeli Fontana

Adriana Lima

Read our red carpet coverage of the Cannes Film Festival here: 

Opening Ceremony: Our favourite looks from the Cannes Red Carpet

Cannes Film Festival Day Two: The most dramatic looks

Cannes Film Festival Day Three: The best ivory dresses

Cannes Film Festival Day Four: The best embellished gowns

Cannes Film Festival Day Five: The best jewel tones

Cannes Film Festival Day Six: The best sheer dresses

Cannes Film Festival: The hair looks that caught our eye

The freshest makeup look at Cannes